31920889

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 43615488

約数和(自身を除く): 11694599

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 169, 223, 847, 1001, 1183, 1561, 1573, 1859, 2453, 2899, 11011, 13013, 17171, 20293, 20449, 26983, 31889, 37687, 143143, 188881, 223223, 263809, 350779, 414557, 2455453, 2901899, 4560127, 31920889]

約数ペア:

[(1, 31920889), (7, 4560127), (11, 2901899), (13, 2455453), (77, 414557), (91, 350779), (121, 263809), (143, 223223), (169, 188881), (223, 143143), (847, 37687), (1001, 31889), (1183, 26983), (1561, 20449), (1573, 20293), (1859, 17171), (2453, 13013), (2899, 11011)]